Nibe SMO 20 User manual

User manual
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NIBE™ SMO 20
Control module
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A detailed explanation of the button functions can be found on page
8.
How to scroll through menus and make different settings is described
on page 12.
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The mode for setting the indoor temperature is reached, when in the
start mode in the main menu, by pressing the OK button twice. Read
more about the settings on page 19.
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To temporarily increase the amount of hot water (if a hot water heater
is installed to your SMO 20), first turn the control knob to mark menu
2 (water droplet) and then press the OK button twice. Read more about
the settings on page 31.
In event of disturbances in comfort
If a disturbance in comfort of any type occurs there are some measures
that can be taken before you need to contact your installer. See page
52 for instructions.

Table of Contents
1 Important information 2
Installation data 2
Safety information 3
Serial number 4
Country specific information 4
SMO 20 – An excellent choice 7
2 The control module – the heart of the house 8
Control module's function 8
Contact with SMO 20 8
Maintenance of SMO 20 16
3 SMO 20 – at your service 19
Set the indoor climate 19
Set the hot water capacity 31
Get information 35
Adjust the heat pump 39
4 Disturbances in comfort 51
Manage alarm 51
Troubleshooting 52
Additional heating only 54
5 Technical data 56
6 Glossary 57
Item register 61
1NIBE™ SMO 20Table of Contents |

1Important information
Installation data
SMO 20Product
Serial number
Installation date
Installer
Type of docking
Accumulator/hot water heater
Heat pump/output size
Add. heat type/power
SetDe-
fault
set-
tings
NameNo.
0/9heating curve (offset/curve slope)1.9.1
Serial number must always be given
Certification that the installation is carried out according to instructions
in NIBE's installer manual and applicable regulations.
_________________________Signed__________________Date
NIBE™ SMO 20Chapter 1 | Important information2

Safety information
This appliance can be used by children aged from 8
years and above and persons with reduced physical,
sensory or mental capabilities or lack of experience
and knowledge if they have been given supervision or
instruction concerning use of the appliance in a safe
way and understand the hazards involved. Children
shall not play with the appliance. Cleaning and user
maintenance shall not be made by children without
supervision.
Rights to make any design or technical modifications
are reserved.
©NIBE 2013.
Symbols
NOTE
This symbol indicates danger to machine or person.
Caution
This symbol indicates important information about what you should ob-
serve when maintaining your installation.
TIP
This symbol indicates tips on how to facilitate using the product.
Marking
SMO 20 is CE marked and fulfils IP21.
The CE marking means that NIBE ensures that the product meets all regu-
lations that are placed on it based on relevant EU directives. The CE mark
is obligatory for most products sold in the EU, regardless where they are
made.
IP21 means that the product can be touched by hand, that objects with a
diameter larger than or equivalent to 12.5 mm cannot penetrate and cause
damage and that the product is protected against vertically falling drops.
3NIBE™ SMO 20Chapter 1 | Important information

Serial number
The serial number can be found on the upper side of the cover on the
control module.
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Caution
Always give the product's serial number when reporting a fault.
Country specific information
Great Britain
This installation is subject to building regulation approval, notify the local
Authority of intention to install.
Use only manufacturer’s recommended replacement parts.
Nibe is a licensed member of the Benchmark Scheme which aims to im-
prove the standards of installation and commissioning of domestic heating
NIBE™ SMO 20Chapter 1 | Important information4

and hot water systems in the UK and to encourage regular servicing to
optimise safety, efficiency and performance.
Benchmark is managed and promoted by the Heating and Hotwater In-
dustry Council. For more information visit www.centralheating.co.uk
Warranty and insurance information
Thank you for installing a new NIBE heat pump in your home.
NIBE heat pumps are manufactured in Sweden to the very highest standard
so we are pleased to offer our customers a comprehensive guarantee.
The product is guaranteed for 24 months for parts and labour from the
date of installation or 33 months from the date of manufacture, whichever
is the shorter.
The NIBE guarantee is based on the unit being installed and commissioned
by a NIBE accredited installer, serviced every year and the Benchmark
documents completed. Where this condition is not met, any chargeable
spare parts or components issued within the applicable guarantee period
still benefit from a 12 month warranty from the date of issue by the
manufacturer.
We recommend the installer completes and returns as soon as possible,
your guarantee registration card or completes the guarantee form on the
NIBE website www.nibe.co.uk.
Please ensure that the installer has fully completed the Benchmark
Checklist in the end of the Installation Instructions supplied with the
product and that you have signed to say that you have received a full and
clear explanation of its operation. The installer is legally required to com-
plete a commissioning checklist as a means of complying with the appro-
priate Building Regulations (England and Wales).
All installations must be notified to Local Area Building Control either
directly or through a Competent Persons Scheme. A Building Regulations
Compliance Certificate will then be issued to the customer who should,
on receipt, write the Notification Number on the Benchmark Checklist.
This product should be serviced regularly to optimise its safety, efficiency
and performance. The service engineer should complete the relevant
Service Record on the Benchmark Checklist after each service.
The Benchmark Checklist may be required in the event of any warranty
work and as supporting documentation relating to home improvements
in the optional documents section of the Home Information Pack.
5NIBE™ SMO 20Chapter 1 | Important information

NIBE™ SMO 20Chapter 1 | Important information6

SMO 20 – An excellent choice
SMO 20 is an electric control module, which has been introduced to supply
your home with inexpensive and environmentally friendly heating. Heat
production is reliable and economical with a NIBE air/water heat pump
and accumulator/water heater.
An additional heater (for example electric/oil/gas boiler) can engage
automatically if something unexpected should occur or as reserve opera-
tion.
Excellent properties for SMO 20:
႑Easy to read display
The control module has an easy to read display with easy-to-understand
menus that facilitate setting a comfortable indoor climate.
႑Easy to install
SMO 20 is easy to install together with a compatible NIBE air/water
heat pump. When installing together with these, the control module
is connected to the heat pump, which enables you to see any heat
pump alarms in SMO 20. The size of the control module means that it
can be installed on walls indoors for easy access to control your install-
ation.
7NIBE™ SMO 20Chapter 1 | Important information

2The control module – the
heart of the house
Control module's function
SMO 20 is a simple electrical control module, which, together with NIBE
air/water heat pump, accumulator/water heater and additional heater
(e.g. electric/gas boiler), creates a complete installation. Among other
things, it controls the heat pump, circulation pumps, reversing valves and
additional heat to supply your home with inexpensive and environmentally
friendly heating in the most efficient way.
Contact with SMO 20
Display unit
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There is a display unit on the front of the control module, which is used
to communicate with SMO 20. Here you:
႑switch on, switch off or set the installation to emergency mode.
႑set the indoor climate and hot water as well as adjust the installation
to your needs.
NIBE™ SMO 20Chapter 2 | The control module – the heart of the house8

႑receive information about settings, status and events.
႑see different types of alarms and receive instructions about how they
are to be rectified.
Display
Instructions, settings and operational information are shown on
the display. The easy-to-read display and menu system, facilitates
navigation between the different menus and options to set the
comfort or obtain the information you require.
A
Status lamp
The status lamp indicates the status of the control module. It:
႑lights green during normal operation.
႑lights yellow in emergency mode.
႑lights red in the event of a deployed alarm.
B
OK button
The OK button is used to:
႑confirm selections of sub menus/options/set values/page in
the start guide.
C
Back button
The back button is used to:
႑go back to the previous menu.
႑change a setting that has not been confirmed.
D
Control knob
The control knob can be turned to the right or left. You can:
႑scroll in menus and between options.
႑increase and decrease the values.
႑change page in multiple page instructions (for example help
text and service info).
E
9NIBE™ SMO 20Chapter 2 | The control module – the heart of the house

Switch
The switch assumes three positions:
႑On ()
႑Standby ( )
႑Emergency mode ( )
Emergency mode must only be used in the event of a fault on the
control module. In this mode, the compressor in the heat pump
switches off and the immersion heater engages. The control module
display is not illuminated and the status lamp illuminates yellow.
F
NIBE™ SMO 20Chapter 2 | The control module – the heart of the house10

Menu system
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INDOOR CLIMATE
Setting the indoor climate. See page 19.
Menu 1
HOT WATER
Setting the hot water production. See page 31.
Menu 2
This menu only appears if a water heater is installed in the system.
INFO
Display of temperature and other operating information and access to
the alarm log. See page 35.
Menu 3
MY SYSTEM
Setting time, date, language, display, operating mode etc. See page 39.
Menu 4
11NIBE™ SMO 20Chapter 2 | The control module – the heart of the house

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Operation
To move the cursor, turn the control knob to the left or the right.
The marked position is brighter and/or has a light frame.
Selecting menu
To advance in the menu system select a main menu by marking
it and then pressing the OK button. A new window then opens with sub
menus.
Select one of the sub menus by marking it and then pressing the OK button.
NIBE™ SMO 20Chapter 2 | The control module – the heart of the house12

Selecting options
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In an options menu the current selected option is indicated by a green
tick.
To select another option:
1. Mark the applicable option. One of the options is pre-selected
(white).
2. Press the OK button to confirm the selected option. The selected
option has a green tick.
13NIBE™ SMO 20Chapter 2 | The control module – the heart of the house

Setting a value
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To set a value:
1. Mark the value you want to set using the control knob.
2. Press the OK button. The background of the value becomes
green, which means that you have accessed the setting mode.
3. Turn the control knob to the right to increase the value and to
the left to reduce the value.
4. Press the OK button to confirm the value you have set. To change
and return to the original value, press the Back button.
Scroll through the windows
A menu can consist of several windows. Turn the control knob to scroll
between the windows.
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Scroll through the windows in the start guide
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1. Turn the control knob until one of the arrows in the top left corner (at
the page number) has been marked.
2. Press the OK button to skip between the steps in the start guide.
NIBE™ SMO 20Chapter 2 | The control module – the heart of the house14

Help menu
In many menus there is a symbol that indicates that extra help is
available.
To access the help text:
1. Use the control knob to select the help symbol.
2. Press the OK button.
The help text often consists of several windows that you can scroll between
using the control knob.
15NIBE™ SMO 20Chapter 2 | The control module – the heart of the house

Maintenance of SMO 20
Regular checks
All servicing must be carried out by a person competent for the job.
Your heat pump requires minimal maintenance after commissioning. On
the other hand, it is recommended that you check your installation regu-
larly. For more information regarding the maintenance of heat pumps
and/or accumulator tanks/water heaters, refer to the relevant manual.
If something unusual occurs, messages about the malfunction appear in
the display in the form of different alarm texts. See alarm management
on page 51.
Saving tips
Your heat pump installation produces heat and hot water. This occurs via
the control settings you made.
Factors that affect the energy consumption are, for example, indoor tem-
perature, hot water consumption, the insulation level of the house and
whether the house has many large window surfaces. The position of the
house, e.g. wind exposure is also an affecting factor.
If you activate "Hot water Economy", less energy is used.
NIBE™ SMO 20Chapter 2 | The control module – the heart of the house16

Power consumption
Increasing the indoor temperature one degree increases power consump-
tion by approx. 5%.
Domestic electricity
In the past it has been calculated that an average Swedish household has
an approximate annual consumption of 5000 kWh domestic electri-
city/year. In today's society it is usually between 6000-12.000 kWh/year.
Approx-
imate
annual
con-
sump-
tion
(kWh)
Normal Output
(W)
Equipment
StandbyOperation
3802200Flat-screen (Operation: 5 h/day, Standby: 19
h/day)
901011Digital box (Operation: 5 h/day, Standby: 19
h/day)
45515DVD (Operation: 2 h/week)
672160TV games console (Operation: 6 h/week)
50140Radio/stereo (Operation: 3 h/day)
1202100Computer incl. screen (Operation: 3 h/day,
standby 21 h/day)
175-60Bulb (Operation 8 h/day)
55-20Spot light, Halogen (Operation 8 h/day)
165-100Cooler (Operation: 24 h/day)
380-120Freezer (Operation: 24 h/day)
365-1500Oven, hob (Operation: 40 min/day)
310-3000Oven (Operation: 2 h/week)
730-2000Dishwasher, cold water connection (Opera-
tion 1 time/day)
730-2000Washing machine (Operation: 1 time/day)
730-2000Tumble drier (Operation: 1 time/day)
100-1000Vacuum cleaner (Operation: 2 h/week)
50-400Engine block heater (Operation: 1 h/day, 4
months a year)
17NIBE™ SMO 20Chapter 2 | The control module – the heart of the house

Approx-
imate
annual
con-
sump-
tion
(kWh)
Normal Output
(W)
Equipment
100-800Passenger compartment heater (Operation:
1 h/day, 4 months a year)
These values are approximate example values.
Example: A family with 2 children live in a house with 1 flat-screen TV, 1
digital box, 1 DVD player, 1 TV games console, 2 computers, 3 stereos, 2
bulbs in the WC, 2 bulbs in the bathroom, 4 bulbs in the kitchen, 3 bulbs
outside, a washing machine, tumble drier, fridge, freezer, oven, vacuum
cleaner, engine block heater = 6240 kWh domestic electricity/year.
Energy meter
Check the accommodation's energy meter regularly, preferably once a
month. This will indicate any changes in power consumption.
NIBE™ SMO 20Chapter 2 | The control module – the heart of the house18